Пластиножаберные (акулы и скаты) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); tilstoni: In honor of Richard Tilston, naturalist-surgeon at Port Essignton, Northern Territory, near where holotype was collected in the 1840s (See ETYFish).
Eponymy: Richard Tilston was a naturalist who trained as a physician at Guy’s Hospital, London (1841) and became a naval surgeon (1842). [...] (Ref. 128868), visit book page.
More on author: Whitley.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
морской; солоноватоводный pelagic-neritic; пределы глубины 0 - 150 m (Ref. 6871). Tropical; 10°S - 28°S
Indo-West Pacific: currently known only from the continental shelf of tropical Australia. Very similar to Carcharhinus limbatus and reliably distinguished only by biochemical studies and vertebral counts (Ref. 9819).
Длина при первой зрелости / Размер / Вес / Возраст
половая зрелость: Lm ?, range 115 - ? cm
Max length : 200 cm TL самец/пол неопределен; (Ref. 9997); наибольший вес (опубликованные данные): 52.0 kg (Ref. 6390); наибольший возраст (опубликованны данные): 12 годы (Ref. 6390)
колючие лучи спинного плавника (общее число) : 0; колючие лучи анального плавника: 0. Back dark grey, ashy blue or dusky bronze; belly white or yellowish white; a dark band extending rearward along each side to about over origin of pelvic fin; tips of pelvic fins with a persistent black spot (Ref. 9997).
Body shape (shape guide): fusiform / normal.
Found on the continental shelf from close inshore to about 150 m depth (Ref. 9997). Found throughout the water column but usually near the sea bed during the day and near the surface at night (Ref. 6390). Prefers teleost fishes but also feeds on cephalopods to a lesser degree. Viviparous (Ref. 50449). Forms large aggregations (Ref. 6871). Utilized for its meat and fins (Ref. 6871). The flesh has a relatively high mercury content (Ref. 6871).
Viviparous, placental (Ref. 50449). The average litter size is 3, with a range of 1-6, average total length at birth is 60 cm. Pups are born in January after a 10-month gestation period. These sharks breed once each year (Ref. 13440). Distinct pairing with embrace (Ref. 205).
Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993. Australian fisheries resources. Bureau of Resource Sciences, Canberra, Australia. 422 p. (Ref. 6390)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения
дополнительная информация
инструменты
Специальные отчеты
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00243 - 0.01135), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Трофический уровень (ссылка 69278) |
4.2 ±0.6 se; based on diet studies. |
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Generation time |
7.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
устойчивость к внешним воздействиям (ссылка 120179) |
низкий, минимальное время удвоения популяции 4.5-14 лет (K=0.14; tm=3-4; tmax=12). |
Уязвимость рыбной ловли (Ref. 59153) |
High to very high vulnerability (70 of 100). 🛈 |
Категория цены (Ref. 80766) |
Medium.
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